Home / 743,488.01-1,026,064.21-421,200.76

Finding the Fourth Proportional to 743,488.01, 1,026,064.21 and 421,200.76

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Solution

The fourth proportional to 743,488.01, 1,026,064.21 and 421,200.76 is: 581,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,488.01 : 1,026,064.21 = 421,200.76 : x
  2. Step 2: Convert to fraction form
    743,488.01/1,026,064.21 = 421,200.76/x
  3. Step 3: Cross multiply
    743,488.01x = 1,026,064.21 × 421,200.76
  4. Step 4: Simplify right side
    743,488.01x = 432,179,024,156.26
  5. Step 5: Solve for x
    x = 432,179,024,156.26/743,488.01
  6. Step 6: Final answer
    x = 581,285.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.